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Bioinspired magnetoreception and navigation in nonorthogonal environments using magnetic signatures

机译:使用磁性签名的非正交环境中的生物透明磁射线和导航

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摘要

Diverse taxa use Earth's magnetic field in conjunction with other sensory modalities to accomplish navigation tasks ranging from local homing to long-distance migration across continents and ocean basins. However, despite extensive research, the mechanisms that underlie animal magnetoreception are not clearly understood, and how animals use Earth's magnetic field to navigate is an active area of investigation. Concurrently, Earth's magnetic field offers a signal that engineered systems can leverage for navigation in environments where man-made systems such as GPS are unavailable or unreliable. Using a proxy for Earth's magnetic field, and inspired by migratory animal behavior, this work implements a behavioral strategy that uses combinations of magnetic field inclination and intensity as rare or unique signatures that mark specific locations. Specifically, to increase the realism of previous work, in this study, a simulated agent uses a magnetic signatures based strategy to migrate in magnetic environments where lines of constant inclination and intensity are not necessarily orthogonal. The results further support existing notions that some animals may use combinations of magnetic properties as navigational markers, and provide insights into features and constraints that could enable navigational success or failure in either a biological or engineered system.
机译:不同的分类群地区使用地球磁场与其他感官模式结合使用,以完成从当地归位到跨大陆和海洋盆地的远程迁移的航行任务。然而,尽管进行了广泛的研究,但是没有清楚地理解动物磁磁性的机制,以及动物如何使用地球磁场导航是一个有效的调查领域。同时,地球的磁场提供了一种信号,该信号可以利用在环境中的人造系统(如GPS)不可用或不可靠的环境中利用导航。使用地球磁场的代理,并受到迁移的动物行为的启发,这项工作实现了一种行为策略,它使用磁场倾斜度和强度的组合作为标记特定位置的罕见或唯一签名。具体地,为了增加先前作品的现实主义,在本研究中,模拟代理使用基于磁性签名的策略来迁移在磁环境中,其中恒定倾斜和强度不一定正交。结果进一步支持现有观念,即某些动物可以使用磁性特性的组合作为导航标记,并提供对可以在生物或工程系统中实现导航成功或失败的特征和约束的见解。

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